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Digital photovoltaic alternating current combiner box

An AC combiner box and digital technology, applied in the field of digital photovoltaic AC combiner boxes, can solve the problems of worker threats, no real-time monitoring of voltage input and current input values, and no electrical isolation, so as to protect life safety. Effect

Inactive Publication Date: 2019-07-19
NINGBO HENGSHENG ELECTRIC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since there is no real-time monitoring of the voltage input and current input values ​​​​on the three phases, and there is no effective electrical isolation, such defects will cause serious threats to the staff

Method used

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  • Digital photovoltaic alternating current combiner box
  • Digital photovoltaic alternating current combiner box

Examples

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Embodiment Construction

[0018] This example:

[0019] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] Such as figure 1 As shown, a digital photovoltaic AC combiner box includes an input circuit breaker, a surge protector SPD, an output circuit breaker QF, a three-phase digital multifunctional measurement and control meter PMC-33M and an 8-way switch value acquisition device ARTU-K8; The input circuit breaker is electrically connected to the surge protector SPD, the output terminal of the surge protector SPD is electrically connected to the output circuit breaker QF, and the three-phase digital multifunctional measurement and control ammeter PMC-33M and the 8-way switch value acquisition device ARTU- K8 is connected in series, between the inp...

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Abstract

The invention discloses a digital photovoltaic alternating current combiner box. The combiner box comprises an input circuit breaker, a surge protector, an output circuit breaker, a three-phase digital multifunctional measurement and control electric meter and an eight-way switch quantity acquisition device; the input circuit breaker and the surge protector are electrically connected; the output end of the surge protector is electrically connected with the output circuit breaker; the three-phase digital multifunctional measurement and control electric meter and the eight-way switch quantity acquisition device are connected in series; and the three-phase digital multifunctional measurement and control electric meter and the eight-way switch quantity acquisition device are connected betweenthe input circuit breaker and the output circuit breaker in parallel. According to the digital photovoltaic alternating current combiner box, the values of voltage inputs and current inputs on three phases can be monitored in real time, and effective electrical isolation is added, so that electrical isolation of input and output is realized, and the life safety of workers is protected.

Description

technical field [0001] The invention relates to the technical field of photovoltaic AC combiner boxes, in particular to a digital photovoltaic AC combiner box. Background technique [0002] In the photovoltaic power generation system, the combiner box is a wiring device to ensure the orderly connection and confluence function of photovoltaic modules. The device can ensure that the photovoltaic system is easy to cut off the circuit during maintenance and inspection, and reduces the scope of power failure when the photovoltaic system fails. The combiner box means that the user can connect a certain number of photovoltaic cells with the same specifications in series to form a photovoltaic series, and then connect several photovoltaic series in parallel to the photovoltaic combiner box. After converging in the photovoltaic combiner box, through the control The inverter, DC power distribution cabinet, photovoltaic inverter, and AC power distribution cabinet are used together to ...

Claims

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Application Information

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IPC IPC(8): H02S40/34G01R19/00
CPCG01R19/00H02S40/34Y02E10/50
Inventor 胡剑锋周军安
Owner NINGBO HENGSHENG ELECTRIC
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